33:10

Thermodynamics last class

50:28

1st Revision class of EMI and RAY OPTICS

48:45

Class 11|| Physics|| Oscillation and Waves|| Lecture_3||

41:51

ktg 2nd

33:26

Wave 6th(last)

12:56

To Master Physics, First Master the Harmonic Oscillator

1:56:08

Pre-Algebra Final Exam Review

1:49:55

How To Speak Fluently In English About Almost Anything